There are taco places in south Texas that have not only tongue, but also brain and eyeball tacos. And maybe even other body parts. There's one large restaurant in Laredo that does an enormous breakfast trade in such "delicacy" tacos and Mariachis (which is the local term for a soft taco). When I lived in Laredo, I took great delight in taking visitors there. But I never ate the tacos.

I think the first 2091 "Mexican Model" .38 targets from 1945-46 were the first with the Latin (or Spanish - take your pick) markings. The 4-line stamping came later. As the intent was to export most of these revolvers to Mexico as a means of getting rid of them, that's why I think Marcas Registradas is Spanish. If you enter Marcas Registradas in Google Translate as being Spanish, it provides the English translation to be "Trademarks." I'm not sure the ancient Romans even had a word for Trademark. If there is, Google Translate does not recognize its having a Latin translation.